/*
 * Copyright (C) 2015 Holmes Team at HUAWEI Noah's Ark Lab.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.apache.spark.streamdm.classifiers.model

import org.scalatest.FunSuite

/**
 * Test suite for the L1Regularizer
 */
class L1RegularizerSuite extends FunSuite {

  test("The L1 Regularizer function must compute the gradient of the regularizer") {
    val regularizer = new L1Regularizer
    assert (regularizer.gradient(.5) == 1)
    assert (regularizer.gradient(-.5) == -1)
  }

}
